Depositing apparatus



Sept. 25, 1928.

w. R. MYERS ETAL DEPOS ITING APPARATUS Original Filed Deo. 7. 1926y ATTORN EY Patented Sept. 25, 1928.

, UNITED STATES n 1,685,460 PATENT OFFICE.

WLSON R. MYERS AND BERNHARD O. OPITZ, F PORTLAND, OREGON.

l DEPOSITING APPARATUS.

Original application led December 7, 1.926. Serial No. 153,099, and in Canada December 24, 1.926. Divided and this application led July 18, 1927. Serial No. 206,665.

the moving parts which come `in contact.

with the materials to be deposited maybe cleaned without disassemblingthe appara- 10.-,tus and third, to provide a compact simple mechanism for operating the piston and sleeve valve from a single constantly rotating shaft with easily accessible provision for adjusting the stroke of the :charge of the material.

This application is a division of our application Serial No. 153,099, filed December' 7, 1926.

The invention-claimed herein resides in fthe novel combination, design and arrangement of paits which will hereinafter be described and pointed out in theappended claims, reference being hadto the accompanying drawing, in which Figure l is a -perspective view including a section taken through the ejecting cylinders. Figure 2 is a diagrammatic section through a material handling cylinder showing parts at the completion of Va loading. n

Figure 3 shows the same parts in position to admit material to the measuring'compartment. y

Figure 4 shows the same parts with the measuring compartment completely filled.

Figure 5 shows the same parts with the intake port of the measuring compartment closed and the discharge port opened from which a definite quantity of material is discharged.

In the drawing which illustrates our invention as designed for use in the machine disclosed in our application aforesaid, 47 indicates a hopper which `is provided with a jacket 48 that is supplied with a 'suitable heating or cooling su stance (accordingly as the content ofthe hopper is one requiring the application ofheat or coldto maintain its fluidity) by a pipe 49. In the base 50 of the hopper 47 are formed a pluralitvof material piston to vary the of cylinders, inl each of which Vis slidably placed a sleeve 52. Each sleeve 52 has an inlet port 53 which registers with the opening 54 in the bottom of the hopper 47 when b?, the sleeve is ints outermost position, Each driven by any suitable means.

measuring pockets 5l, preferably in the form sleeve 52 is also provided with an outlet port 55 which registers with the port 56 in the base 50 when the sleeve 52 is in its innermost position. All of the sleeves 52 are joined by the common head 57 to which movement is imparted by the levers 58 which pivot on the rod 59, and each of which levers is provided with two cam lobes 60 between which can 0perate the cams 61 on the shaft 62, which is The shaft 62 passes through a slot 66 in each of the levers 58 which allows them to be moved by the cam 61. t

The rod 59 is supported by the side frames 67 which also support the shaft 68 whose pendant arms 69 are joined by the link 70 to the bar 7l which actuates all of the pistons 72 within the sleeves 52. The reduced outer ends 73 of the pistons 72 are preferably uided in the bracket 74, although the pistons 2 can also be operated, as shown in the somewhat diagrammatic views in Figures 2 to 5 inclusive, namely without a guide for vthe outer end of the piston. Y

A rocking movement is imparted to the shaft 68 through the slotted lever 75 whose connecting rod 76 is moved by the crank 77 on the shaft 62.v It follows that the rotation of the shaft 62 first causes the port 53 to registerwitli the opening 54 and permits the material to flow into the measuringcompartment. The outward movement of the piston 72 now actually draws the material into the measuring compartment, after .which the sleeve is moved to the position shown in Figure 5, permitting the material to be discharged into a receptacle beneath (not shown) under action of the piston 72, but it cannot return to the hopper 47 since the connecting ports 53 and 54 are out of register. This provides not only a rapid flow of material into the receptacle but always insures the introduction of a definite quantity of material therein, and the forcedpassage of material into and out of each of the measuring cylin-V ders also insures against the stoppage of the ports by foreign matter or by partially congealed material which might find its way into the measuring chamber.

Vhen used in the machine of our application Serial No. 153,099 above referred to, two or more of these units are employed, one to deposit hot material (chocolate) and the t other to deposit cold material (ice cream).`

lt will be noted. that a slot x is provided in the lever whereby the point of connec- Y tion between the lever 75 and the rod 76 may LCI be altered to vary the stroke of the rocking lever 75. f

In order to clean the apparatus after its use has been discontinued, a suitable 1ashing fluid may be introduced into the hopper 47 and the shaft GQ rotated sufficiently to feed out'the washing material. Should it be found that the inalerial gumsup within the sleeve 52' the cover plate 50X may be removed and the pockets 'limay be swabbed ont, thiis making it'nnnecessary to take the apparatus apartY eifectu'ally to clean it.

what we claiinis: Y 1L A filler for delivering a multiple of measured'volnnies of liquid intermittently, consisting of a' hopper having a plurality `of openings formed in the bottom thereof, said hopper having a base provided with a pluralityof cylindrical openings eachV close `d at one end'each of which openings communicates with one of the hopper openings, `each cylinder opening having a hollow sleeve open `V`thrrmghout its length and s lidably placed therein, said sleeve having a port therein which registers with one of said hopper openingsy whensaid sleeve is in lan outward posi- Vtio1`i,'said sleeve having a. second port formed therein registering with a discharge port in said base when said sleeve is in the innermost position; a pistoninA each sleeve and having a piston rod ;'and means for sliding said piston and sleeve in a manner that said hopper opening will communicate with the interior of consisting of a hopper having a pluralityof openings formed in the bottom thereof, said hopper having a base provided with a plu-V rality of cylindrical openings each closed at one end each of which openings communi- Y Cates with one of the hopper openings, each cylinder opening having a hollow sleeve open throughout its length and slidably placed therein, said sleeve having a port therein which registers with one of .said hopper openings when `said sleeve is in an outward position, vsaidsl'eeve havinga second port formed therein registering with a dischargeport in said base when said sleeve is in the innermostY positiong al piston in each sleeve and having a piston rod; and means for .sliding said piston Vand sleeve in a manner that said -hopper opening will communicatel with the interior of said sleeve while said piston is being withdrawn and that t-heV discharge port of said sleeve shall communicate with the discharge of said base when said piston is forced into said sleeve, said last named means comprising a lever pendently mounted at one side of the hopper, said lever having an arcuate slot, an operating shaft passing through said slot, a cam on-said shaft, cam lobes on said lever engaging opposite .sides of said cam, a connectionlbetweenl said lever and all said sleeves to move the samein unison. a rock shaft, a lever secured to said rockfshaft, a connection between said last named lever and all .said pistons whereby they move in unison, a crank on said operating shaft, a connecting rod and rocking lever connection between said crank and said Vrock shaft and including means to adjust the stroke of the rocking lever'.

3. A filler for delivering a multiple of measured volumesy of liquid'intermittently consisting of 'a hopper havinga plurality ,of

openings formed' in the bottom thereof, said hopper having a base provided with a plnrality of cylindrical openings each closed at one end each of which Vopenings communicates with one of the hopper openings, each cylinder opening having a hollow sleevel open throughout its length and slidahly placed therein, Said sleeve having a port. therein which lregisters with one of 'said hopper openings when saidsleeve is in an outward position, said sleeve having a second port formed therein registering with a. discharge port in said base when said sleeve is in the innermost position; `a piston in each sleeve and having a piston rod; and means for sliding said piston and sleeve in a manner thatsaidhopper opening will communicate with thev interior of said sleeve while said piston is being withdrawn and that the discharge `port of said slee-ve shall communicate with the discharge of said base when said piston is forced into said sleeve, said last named means comprising a lever pendent-ly mounted at one side of the hopper, said leverrhavingan arcuate slot, an operating shaft passing through said slot, a cam on said shaft, cam lobes on said lever engaging opposite sides of said cam, a connection between said lever and all said sleeves to move the same in unison, a rock shaft, a lever secured to said rock shaft, a connection between saidlast named lever and all said pistons whereby they move in unison, a crank on said operating shaft, .a connecting rod and rocking lever connection between said crank and said roch shaft and including means to adjust the stroke of the rocking lever, a snpporting frame for the hopper in which said operating shaft, said rock shaft and the support for said pendent levers are mounted, said frame including a transverse'portion having guides for'tlie rods of said pistons.

, 4l. In a filling machine, a hopper with a vdischarging opening and a base provi-ded with a cylindrical chamber passing horizontally throiigh the same, a cover plate'o'ver one end of said chamber, a sleeve valve open at both ends .and fitted slidably inrs'aid chamber, said` base having a discharge opening, said sleeve valve having ports to register alternately With said'openings, a piston slidably mounted in said sleeve valve and having a rod projecting out the open end of said chamber and valve, a pendently supporting lever con` nected to said sleeve valve, a rock shaft, a lever on said rock shaft, link connected to said pistons rods, an operating shaft, a crank,pit man andlever connection between said operating shaft and said rock shaft, a cam on said operating shaft and cam lobes on said pndent levers associated with said cam, all ing arranged whereby said hopper opening will communicate with the interior of said sleeve while said piston is being withdrawn andthe dischar e ortV of said sleeve will communicate wit t e discharge of said base when said piston is forced into said sleeve, substantially as shown and for the purposes described.

" WILSON R. MYERS.

BERNHARD O. OPITZ. 

